There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

The following four words might seem abrupt to you. But you can make them meaningful by just adding vowels.
RDSH
GGPLNT
TMT
NN

Hint: All of them are vegetables.

A bus driver was heading down a street in Mexico. He went right past a stop sign without stopping, he turned left where there was a "no left turn" sign, and he went the wrong way on a one-way street. Then he went on the left side of the road past a cop car. Still - he didn't break any traffic laws. Why not?

By moving exactly three matchsticks can you make the below equation true.It can be solved by 3 ways.

You have two strings whose only known property is that when you light one end of either string it takes exactly one hour to burn. The rate at which the strings will burn is completely random and each string is different. How do you measure 45 minutes?

Can you solve the below rebus?

Why Aeroplane windows are round?

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

Can you count the number of triangles in the picture below?

If you had an infinite supply of water and 5-quart and 3-quart pails, how would you measure exactly 4 quarts? What is the least number of steps you need?